Children cough in the morning may be physiological cough, bronchitis and allergic asthma and other causes. 1. physiological cough: children’s respiratory tract has mucus and other secretions stimulation, in the morning when you get up will have to clear the respiratory secretions of the response, manifested as a cough, which is physiological cough. 2. Bronchitis: bronchial inflammation is the main symptom of coughing and coughing up sputum, often occurring in the cold season or sudden changes in climate. Due to the low temperature in the morning, the cilia on the mucous membrane of the respiratory tract are stimulated to move upward and produce a cough reflex, and the phlegm will be discharged from the body through coughing. 3. Allergic asthma: most patients with allergic asthma have allergies, exposure to allergens or cold air, polluted air and exercise after recurrent episodes of wheezing, shortness of breath, tightness in the chest or coughing and other symptoms, the morning cold air triggers may be aggravated. Morning children who often cough and other symptoms, you need to go to the pediatric internal medicine department of the regular hospital as soon as possible to improve the examination, identify the cause of the disease after active treatment.